To oscillate about a selected value. Used of a machine, an instrument, or a system.
在一特定值的附近摇摆：在某一选定值周围振荡。用于机器，仪器或系统。
To oscillate about a selected value. Used of a machine, an instrument, or a system.
在一特定值的附近摇摆在某一选定值周围振荡。
Optical atomic clocks oscillate much faster, at about 500, 000 billion cycles per second, and thus divide time into smaller units.
光学原子钟振动的速度快得多，大约每秒500万亿次，因此把时间分成了更小的单元。
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